Home / 57,283.20-85,827.60-47,368.80

Finding the Fourth Proportional to 57,283.20, 85,827.60 and 47,368.80

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Solution

The fourth proportional to 57,283.20, 85,827.60 and 47,368.80 is: 70,972.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,283.20 : 85,827.60 = 47,368.80 : x
  2. Step 2: Convert to fraction form
    57,283.20/85,827.60 = 47,368.80/x
  3. Step 3: Cross multiply
    57,283.20x = 85,827.60 × 47,368.80
  4. Step 4: Simplify right side
    57,283.20x = 4,065,550,418.88
  5. Step 5: Solve for x
    x = 4,065,550,418.88/57,283.20
  6. Step 6: Final answer
    x = 70,972.82

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.